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57269 is a prime number
BaseRepresentation
bin1101111110110101
32220120002
431332311
53313034
61121045
7325652
oct157665
986502
1057269
113a033
1229185
13200b4
1416c29
1511e7e
hexdfb5

57269 has 2 divisors, whose sum is σ = 57270. Its totient is φ = 57268.

The previous prime is 57259. The next prime is 57271. The reversal of 57269 is 96275.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56644 + 625 = 238^2 + 25^2 .

It is a cyclic number.

It is not a de Polignac number, because 57269 - 212 = 53173 is a prime.

It is a super-2 number, since 2×572692 = 6559476722, which contains 22 as substring.

Together with 57271, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28634 + 28635.

It is an arithmetic number, because the mean of its divisors is an integer number (28635).

257269 is an apocalyptic number.

It is an amenable number.

57269 is a deficient number, since it is larger than the sum of its proper divisors (1).

57269 is an equidigital number, since it uses as much as digits as its factorization.

57269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3780, while the sum is 29.

The square root of 57269 is about 239.3094231325. The cubic root of 57269 is about 38.5454570739.

The spelling of 57269 in words is "fifty-seven thousand, two hundred sixty-nine".